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Finding the Fourth Proportional to 494,425.22, 682,259.56 and 392,696.91

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Solution

The fourth proportional to 494,425.22, 682,259.56 and 392,696.91 is: 541,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,425.22 : 682,259.56 = 392,696.91 : x
  2. Step 2: Convert to fraction form
    494,425.22/682,259.56 = 392,696.91/x
  3. Step 3: Cross multiply
    494,425.22x = 682,259.56 × 392,696.91
  4. Step 4: Simplify right side
    494,425.22x = 267,921,220,048.22
  5. Step 5: Solve for x
    x = 267,921,220,048.22/494,425.22
  6. Step 6: Final answer
    x = 541,884.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.